2020 Lexus IS350 Owner's Manual / LEXUS 2020 IS300,IS350 OWNER'S MANUAL (OM53F29U)

2574-5. Using the driving support systems
4
Driving
IS350 AWD/IS350/IS300 AWD/IS300_U
■Dynamic radar cruise control can be set when
●The shift lever is in D.
●Range 4 or higher of D has been selected by using the paddle shift switch.
●Vehicle speed is at or above approximately 30 mph (50 km/h).
■Accelerating after setting the vehicle speed
The vehicle can accelerate by operating the accelerator pedal. After accelerating, the
set speed resumes. However, during vehicle-to-vehicle distance control mode, the vehi-
cle speed may decrease below the set speed in order to maintain the distance to the pre-
ceding vehicle.
■Automatic cancelation of vehicle- to-vehicle distance control mode
Vehicle-to-vehicle distance control mode is automatically canceled in the following situ-
ations:
●Actual vehicle speed falls at or below approximately 25 mph (40 km/h).
●VSC is activated.
●TRAC is activated for a period of time.
●When the VSC or TRAC system is turned off.
●When snow mode is set.
●The sensor cannot detect correctly because it is covered in some way.
●Pre-collision braking is activated.
If vehicle-to-vehicle distance control mode is automatically canceled for any other rea-
son, there may be a malfunction in th e system. Contact your Lexus dealer.
■Automatic cancelation of constant speed control mode
Constant speed control mode is automatica lly canceled in the following situations:
●Actual vehicle speed is more than approxim ately 10 mph (16 km/h) below the set vehi-
cle speed.
●Actual vehicle speed falls below approximately 25 mph (40 km/h).
●VSC is activated.
●TRAC is activated for a period of time.
●When the VSC or TRAC system is turned off.
●Pre-collision braking is activated.
If constant speed control mode is automati cally canceled for any other reason, there may
be a malfunction in the system . Contact your Lexus dealer.
■Brake system operation sound
If the brakes are applied automatically while the vehicle is in vehicle-to-vehicle distance
control mode, a brake system operation soun d may be heard. This does not indicate a
malfunction.
■Warning messages and buzzers fo r dynamic radar cruise control
Warning messages and buzzers are used to indicate a system malfunction or to inform
the driver of the need for ca ution while driving. If a warning message is shown on the
multi-information display, read the message and follow the instructions.

2584-5. Using the driving support systems
IS350 AWD/IS350/IS300 AWD/IS300_U
■When the sensor may not be correctly detecting the vehicle ahead
In the case of the following and depending on the conditions, operate the brake pedal
when deceleration of the system is insuff icient or operate the accelerator pedal when
acceleration is required.
As the sensor may not be able to correctly detect these types of vehicles, the approach
warning ( P. 255) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the same lane
●Vehicles with small rear ends (traile rs with no load on board, etc.)
●Motorcycles traveling in the same lane
●When water or snow thrown up by the surrounding vehicles hinders the detecting of
the sensor
●When your vehicle is pointing upwards
(caused by a heavy load in the luggage com-
partment, etc.)
●Preceding vehicle has an extremely high
ground clearance

2594-5. Using the driving support systems
4
Driving
IS350 AWD/IS350/IS300 AWD/IS300_U
■Conditions under which the vehicle-to-vehicle distance control mode may not function
correctly
In the case of the following conditions, o perate the brake pedal (or accelerator pedal,
depending on the situ ation) as necessary.
As the sensor may not be able to correctly detect vehicles ahead, the system may not
operate properly.
●When the vehicle ahead of you decelerates suddenly
●When driving on a road surrounded by a struct ure, such as in a tunnel or on a bridge
●While the vehicle speed is decreasing to the set speed after the vehicle accelerates by
depressing the accelerator pedal
●When the road curves or when the lanes are
narrow
●When steering wheel operation or your posi-
tion in the lane is unstable

2604-5. Using the driving support systems
IS350 AWD/IS350/IS300 AWD/IS300_U
Turns the intuitive parking assist on/off When on, the indicator light comes
on to inform the driver that the sys-
tem is operational.
Intuitive parking assist
: If equipped
The distance from your vehicle to nearby obstacles when parallel parking or
maneuvering into a garage is measured by the sensors and communicated via
the displays and a buzzer. Always check the surrounding area when using this
system.
Types of sensors
Except F SPORT modelsF SPORT models
Front center sensors
Front corner sensors Rear corner sensors
Rear center sensors
Intuitive parking assist-sensor switch
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2614-5. Using the driving support systems
4
Driving
IS350 AWD/IS350/IS300 AWD/IS300_U
When the sensors detect an obstacle, the following displays inform the driver of
the position and distance to the obstacle.
■Multi-information display
Front corner sensor operation
Front center sensor operation
Rear corner sensor operation
Rear center sensor operation
■Lexus Display Audio screenIntuitive parking assist
When the vehicle is moving forward.
A graphic is automatically displayed
when an obstacle is detected. The
screen can be set so that the graphic
is not displayed. ( P. 265)
: Select to mute the buzzer
sounds.
Intuitive parking assist
Rear Cross Traffic Alert (if
equipped)
When the vehicle is moving back-
ward.
A simplified image is displayed on
the upper part of the screen when an
obstacle is detected.
Display
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2
3
4
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2
3

2624-5. Using the driving support systems
IS350 AWD/IS350/IS300 AWD/IS300_U
■Navigation system screen Lexus parking assist-sensor
Rear Cross Traffic Alert (if
equipped)
A graphic is automatically displayed
on the side display when an obstacle
is detected. The screen can be set so
that the graphic is not displayed.
( P. 265)
: Select to mute the buzzer
sounds. This function is available
when the vehicle is moving forward.
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2

2634-5. Using the driving support systems
4
Driving
IS350 AWD/IS350/IS300 AWD/IS300_U
■Distance display
Sensors that detect an obstacle will illuminate continuously or blink.
Sensor detection display, obstacle distance
Display*1
Insert displayApproximate distance to obstacle
Lexus parking assist moni- tor
*4
Front corner sensor/front center sensorRear corner sensor/ rear center sensor
(continuous)
(blinking slowly) Front center sensor only:
3.3 ft. (100 cm) to 1.6 ft.
(50 cm)
Rear center sensor only:
4.9 ft. (150 cm) to 2.0 ft.
(60 cm)
(continuous)(blinking)
1.6 ft. (50 cm) to 1.3 ft. (40
cm)2.0 ft. (60 cm) to 1.5 ft. (45
cm)
(continuous)(blinking
rapidly)
1.3 ft. (40 cm) to 1.0 ft. (30
cm)
Rear corner sensor:
1.5 ft. (45 cm) to 1.0 ft. (30
cm)
Rear center sensor:
1.5 ft. (45 cm) to 1.1 ft. (35
cm)
(blinking*2 or
continuous
*3)
(continuous)
Less than 1.0 ft. (30 cm)
Rear corner sensor:
Less than 1.0 ft. (30 cm)
Rear center sensor:
Less than 1.1 ft. (35 cm)

2644-5. Using the driving support systems
IS350 AWD/IS350/IS300 AWD/IS300_U
*1: The images may differ from that shown in the illustrations. (P. 261)
*2: Multi-information display
*3: Audio system screen
*4: Lexus Display Audio screen
■Buzzer operation and distance to an obstacle
A buzzer sounds when the sensors are operating.
●The buzzer beeps faster as the vehicl e approaches an obstacle. When the
vehicle comes within the following di stance of the obstacle, the buzzer
sounds continuously:
• Front center sensors: Ap proximately 1.0 ft. (30 cm)
• Corner sensors: Approximately 1.0 ft. (30 cm)
• Rear center sensors: Approximately 1.1 ft. (35 cm)
●When 2 or more obstacles are detected simultaneously, the buzzer system
responds to the nearest obstacle. If one or both come within the above dis-
tances, the beep will repeat a lo ng tone, followed by fast beeps.
Approximately 3.3 ft. (100 cm)
Approximately 4.9 ft. (150 cm)
Approximately 1.6 ft. (50 cm)
Approximately 2.0 ft. (60 cm)
The diagram shows th e detection range
of the sensors. Note that the sensors
cannot detect obstacles that are
extremely close to the vehicle.
The range of the sensors may change
depending on the shape of the object
etc.
Detection range of the sensors
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